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How to plot phase and amplitude spectrum after doing fft?

조회 수: 11 (최근 30일)
Saptarshi Maji
Saptarshi Maji 2020년 10월 31일
답변: Sindar 2020년 11월 1일
Hello, I am a new MATLAB user. I had a signal file in .txt which I did Fourier Transform for. I would like to know what code I should input in MATLAB in order to plot the phase and amplitude spectra of this file. Thanks in advance... "The signal txt is atttched herewith"
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Star Strider
Star Strider 2020년 11월 1일
That is not possible to do with any accuracy without having the associated time vector (vector of sampling instants for each sample).
Saptarshi Maji
Saptarshi Maji 2020년 11월 1일
편집: Saptarshi Maji 2020년 11월 1일
Strider, This is the only data given to me by my lecturer in college, I don't need accuracy but can you give me a code that allows this to do the above mentioned program. I know that the data is incomplete, But can you give the specific time vectors by yourself and do the 2 plottings. Take the sample rate of 100samples/second or deltaT = 0.01.
I will be highly grateful.

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Sindar
Sindar 2020년 11월 1일
See this example for in angle documentation

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